
iGetcha.org is a suggested opensource and free software directory for the technological sustainability of nonprofits. It's also a simple, non-techie shortlist to assist organizations with a SOHO.
Yahoo! Messenger is yet another call and chat application. It is one of the mainstream VoIP applications and may end up being stronger as the Microsoft - Yahoo deal evolves. With MSN messenger and Yahoo! messenger, the merger could take advantage of the user-base by combining them. If you're a non-profit that uses one of these and prefers it over Skype, then you may find more people joining you soon.